CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

To Natural Convection Experts

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 1, 2004, 06:38
Default To Natural Convection Experts
  #1
Amit
Guest
 
Posts: n/a
Dear Experts,

I am solving a hopefully very simple problem before starting my project problem but I am not able to do it any how. The problem has a hollow vertical cuboid with top and bottom open. It's one of the vertical walls is hot and rest are insulated. I expect the fluid to rise along the hot wall but it's not happening. The physics of the problem which I set is as follows. 1) non buoyant flow, 2) inlet and outlet are opening with static pressures zero. 3)rho*g*beta*Delta T was added to momentum equation to incorporate buoyancy.

Plz suggest where I am getting wrong.

Amit
  Reply With Quote

Old   January 4, 2004, 18:07
Default Re: To Natural Convection Experts
  #2
Glenn Horrocks
Guest
 
Posts: n/a
Hi Amit,

Why did you put the bounancy effects in the momentum equation (I assume as a momentum source) rather than using the buoyant flow option? I suspect your problem is there. I would just use the buoyant flow option.

Glenn
  Reply With Quote

Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
natural convection problem with radiation jorien CFX 0 October 14, 2011 10:26
Coupled vs Seg - Natural vs. Forced Convection Alex Siemens 5 December 12, 2007 05:58
natural convection at high Rayleigh mauricio FLUENT 2 February 23, 2005 20:43
Approximate Mixing due to Natural Convection Greg Perkins Main CFD Forum 0 February 12, 2003 19:43
Mixing By Natural Convection Processes Greg Perkins FLUENT 0 February 12, 2003 19:40


All times are GMT -4. The time now is 16:28.